Home / Community & Support / Developer Productivity Tools Forums / ASP.NET AJAX > Documentation and Tutorials > Unable to cast object of type 'Telerik.Web.UI.RadMultiPage' to type 'System.Web.UI.UserControl'.

• doug thompson

  Posted on Jan 10, 2012 (permalink)

  error: Unable to cast object of type 'Telerik.Web.UI.RadMultiPage' to type 'System.Web.UI.UserControl'.
  
  When going through a user control for a EditFormUserControl and I wanted to list all the user controls on that page but doing a foreach loop I need a fairly consistent type to iterate through.  So how can I iterate through 'userControl' when it could be a lteral for a label or  a 'RadMultiPage' or a 'UserControl'.  I have tried ...string objectTypeName="RadMultiPage";

   

  Type

   

  T = Type

   

  .GetType(objectTypeName);
  

   

  ((

  typeof(T)))userControl).Controls

   

   

  But I just wanter to be able to have a reursive call listing out all the children be them Usercontrol or Telerik User controls. 
  Any Ideas ?
  Doug

   

   

   

  UserControl userControl = (UserControl)e.Item.FindControl(GridEditFormItem.EditFormUserControlID);

  foreach

   

  (object uc in ((UserControl)userControl).Controls){}
  
  

   

  Reply

• Kate Kate

  Posted on Jan 13, 2012 (permalink)

  Hi Doug,
  
  Please refer to the following forum post that might give you a clearer understanding of how you can achieve the desired behavior:
  
  

  • http://forums.asp.net/t/1726687.aspx/1
  • http://stackoverflow.com/questions/3834544/loop-through-controls-of-a-usercontrol
  • http://stackoverflow.com/questions/2632302/loop-through-all-the-user-controls-on-a-page
  • http://aspmessageboard.com/showthread.php?t=161740

  
  Kind regards,
  Kate
  the Telerik team

  If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now

  Reply

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Home / Community & Support / Developer Productivity Tools Forums / ASP.NET AJAX > Documentation and Tutorials > Unable to cast object of type 'Telerik.Web.UI.RadMultiPage' to type 'System.Web.UI.UserControl'.